Transcription of UCC28740 Constant-Voltage Constant-Current …
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UCC28740 Constant-Voltage Constant-Current …
4 V 5%VOCVO utput Current (IO)Output voltage (VO)3 V2 V1 VVDDVSFBHVDRVCSGNDUCC28740 SOIC-7 CVDDRS1 VAUXNARS2 RLCRCSVBULKCB2CB1+ VACNPNSVOUTCOUTRTLRFB1 RFB2 ZFBC opyright 2017, texas instruments IncorporatedProductFolderOrderNowTechnic alDocumentsTools &SoftwareSupport &CommunityAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand JULY2013 REVISEDJULY2017 UCC28740 Constant-VoltageConstant-CurrentFlybackC ontrollerUsingOptocoupledFeedback11 Features1 Lessthan10-mWNo-LoadPowerCapability OptocoupledFeedbackfor CV, andPrimary-SideRegulation(PSR)for CC Enables 1% VoltageRegulationand 5%CurrentRegulationAcrossLine and Load 700-VStartupSwitch 100-kHzMaximumSwitchingFrequencyEnablesH i
2 UCC28740 SLUSBF3D–JULY 2013–REVISED MARCH 2018 www.ti.com Product Folder Links: UCC28740 Submit Documentation Feedback Copyright © 2013–2018, Texas Instruments Incorporated
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